HARDENED AND TEMPERED STEEL RATCHET HEAD - Heat treated steel ratchet head for strength and durability. CHROME PLATED – For corrosion resistance. HIGH ACCURACY– Calibration tolerance in accordance with BS EN ISO 6789-1:2017. FLIP REVERSE RATCHET MECHANISM – For greater control. MICROMETER TYPE TORQUE ADJUSTMENT – Clear scale with range of 50-300lb.ft/68-407Nm. SUPPLIED IN STORAGE CASE – For easy storage solutions. Drive: 3/4"Sq Length: 660mm Range: 68-407Nm(50-300lb.ft) Nett Weight: 3.48kg .